Marnie took to Instagram with the treasured snap to mark Sophie's 27th birthday and despite the pair being years younger in her photo, you can definitely recognise the Geordie Shore stars, right?
Like butter wouldn't melt!
Alongside her photo, Marnie paid tribute to Sophie and told her that she means "the absolute world" to her.
Marnie said: "Happy birthday to a very special cousin/sister/best friend all wrapped in [one]. Love you with all my heart, you mean the absolute world to me and deserve to have nothing but magic in your life #double trouble #partnersincrime. See you tonight for celebrations @sophiekasaei_ #thebig27."
Marnie's post comes as fans are waiting to see Sophie pop up on Geordie Shore's new series. This time round, the group have headed overseas to travel around different party resorts in Europe, but Sophie hasn't yet joined the cast.
Speaking to Reveal, Sophie told us she thinks she was drafted in to play peacemaker to the house following all the drama. So far, fans have seen Marnie and Aaron Chalmers clash over their on/off relationship (that was before Marnie got together with boyfriend Lewis Bloor), Gaz Beadle and Holly Hagan fallout over Charlotte Crosby, and Chloe Ferry and Marty McKenna argue over their romance.
Addressing her return to Geordie Shore, Sophie told us: "I am buzzing to be back... I've done Geordie Shore for years now, but this time, going back in was so strange. Charlotte wasn't there, and everybody was arguing. The house was upside down... it was insane.
"Out of all the series I've ever done, walking into that house like that was just weird. There's no word to describe it... when I first walked in, trust me, I was like, 'F**k.' I was scared. I was thinking, 'What have I let myself in for?'"
Sophie first joined Geordie Shore back in 2011 when it first aired on MTV. She starred on the show for seven series, and was there for Marnie's first appearance on the show, before being axed over alleged 'offensive behaviour'.
Marnie, meanwhile, joined Geordie Shore at the start of series seven and has been appearing on the reality show ever since.
She had spoken about maybe leaving Geordie Shore to focus on her relationship with former TOWIE star Lewis, but Marnie has since decided she will continue with the show.
During an appearance on Loose Women in October, Marnie confirmed: "I've been in there with a relationship in the past and it's tough but I got through it. And I hadn't cared about anyone like I do about Lewis."
Geordie Shore continues Tuesday 8 November at 10pm on MTV.
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